| 6 July 969 | Egypt, Fatimid Caliphate [political events] | The fourth Fatimid caliph (Islamic ruler), al-Mu'izz, already ruling Kairouan, the Maghreb, and Libya in northern Africa, conquers Egypt and extinguishes the Ikshidid dynasty. He founds a new capital at Cairo, Egypt, which becomes the centre of a Shiite empire. |
| 6 July 1274 | Sicily, Byzantine Empire [political events] | With the enemies of the Byzantine Empire united under Charles of Anjou, King of Sicily, at the General Council of Lyon the ambassadors of the Byzantine emperor Michael VIII Palaeologus take an oath accepting the pope's supremacy. Pope Gregory X then causes Charles to make a truce with Michael. |
| 6 July 1415 | Germany, Holy Roman Empire [political events] | The Council of Constance issues the decree Haec sancta/These Holy Things, which asserts the supremacy of general councils in the church. The Council also condemns the Bohemian reformer John Hus as a heretic and he is burnt at the stake in Constance, Germany, a year later. |
| 6 July 1439 | France, England, Burgundy, Holy Roman Empire [Hundred Years War (1337–1453)] | English and French embassies meet at the Congress of Calais in France. They fail to make peace as the English will not renounce King Henry VI of England's title to be king of France, but the English make a truce with Philip the Good, Duke of Burgundy (on 28 September). |
| 6 July 1439 | Florence, Byzantine Empire [political events] | The union of the Latin and Greek churches is proclaimed at the Council of Florence. Despite the subscription of the Byzantine emperor John VIII and his delegation to the union, the citizens of Constantinople (modern Istanbul, Turkey) refuse to accept it. |
| 6 July 1535 | England [crime and punishment] | Thomas More, English humanist and statesman, Lord Chancellor of England 1529–32, is beheaded in London, England, for treasonably refusing to take the oath of loyalty required by King Henry VIII (58). |
| 6 July 1560 | England, France, Scotland [treaties] | The French forces in Scotland surrender under the Treaty of Edinburgh; England and France both pledge noninterference in Scottish affairs and agree to evacuate the kingdom. The government is to be a council of regents, five chosen by parliament and five by Mary Queen of Scots, who will not use the arms and style ‘of England’. |
| 6 July 1573 | France [treaties] | The Peace of Boulogne ends the Fourth War of Religion in France; the Huguenots (French Protestants) are granted an amnesty and freedom of conscience, but they are free to worship only in La Rochelle, Nîmes, Sancerre, and Montauban. |
| 6 July 1607 | Poland [wars] | King Sigismund III Vasa of Poland's royal forces destroy the rebel army under Mikolaj Zebrzydowski, governor of Kraków, at Guzów, though resistance continues into the following year. |
| 6 July 1630 | Sweden, Germany, Holy Roman Empire [Thirty Years War (1618–48)] | King Gustavus II Adolphus of Sweden lands at Usedom, Pomerania, and marches his army into Germany. He quickly occupies Pomerania and restores Mecklenburg, awarded to the imperial commander in chief Albrecht von Wallenstein, to its hereditary dukes. |
| 6 July 1827 | Russian Empire, UK, France, Greece, Ottoman Empire [treaties] | The Treaty of London is signed by which Russia, Britain, and France agree to recognize the autonomy of Greece and so force Sultan Mahmud II of the Ottoman Empire to make peace with the Greeks. |
| 6 July 1884 | Austria-Hungary [births and deaths] | Gregor Mendel, Austrian monk and botanist who laid the mathematical foundations of genetics, dies in Brünn, Austro-Hungarian Empire (61). |
| 6 July 1893 | France [births and deaths] | Guy de Maupassant, French short-story writer in the Naturalist school, dies in Paris, France (42). |
| 6 July 1914 | Germany, Austria-Hungary [diplomacy] | Germany issues the ‘blank cheque’, promising support to Austria-Hungary in any action it chooses to take against Serbia over the assassination of Archduke Ferdinand. |
| 6 July 1957 | USA, UK [tennis] | Althea Gibson of the USA becomes the first black player to win a singles title at the Wimbledon lawn tennis championships in London, England. |
| 6 July 1960 | England [births and deaths] | Aneurin Bevin, British Labour politician who introduced the National Health Service (NHS), dies in Chesham, Buckinghamshire, England (62). |
| 6 July 1962 | USA [births and deaths] | William Faulkner, US novelist, author of a series of novels known as the Yoknapatawpha cycle and winner of the Nobel Prize for Literature in 1949, dies near Oxford, Mississippi (64). |
| 6 July 1964 | Nyasaland, Malawi [decolonization] | Britain's Nyasaland Protectorate, renamed Malawi, becomes independent within the Commonwealth. |
| 6 July 1971 | USA [births and deaths] | Louis Armstrong, US jazz trumpeter, composer, and band leader, dies in New York City (71). |
| 6 July 1975 | Comoros, France [decolonization] | The Comoros Islands gain their independence from France. |
| 6 July 2005 | Singapore [Olympic Games] | The International Olympic Committee, meeting in Singapore, selects London, England, as the host city for the 30th Olympic Games, to be staged in the summer of 2012. London narrowly beats Paris, France, in the final round of voting. |
